KAFKA-12738: address minor followup and consolidate integration tests of PR #11787#11812

ableegoldman merged 4 commits into

apache:trunkapache/kafka:trunkfrom

ableegoldman:12738-ErrorHandling-TaskExecutionMetadata-followupableegoldman/kafka:12738-ErrorHandling-TaskExecutionMetadata-followupCopy head branch name to clipboard